diff --git a/components/file-upload/backgroundUploader.ts b/components/file-upload/backgroundUploader.ts
index 4582dca..46f9a8e 100644
--- a/components/file-upload/backgroundUploader.ts
+++ b/components/file-upload/backgroundUploader.ts
@@ -283,7 +283,37 @@ const checkMediaLibraryPermission = async (): Promise<{ hasPermission: boolean,
         return { hasPermission: false };
     }
 };
+// 提取视频的首帧进行压缩并上传
+const uploadVideoThumbnail = async (asset: ExtendedAsset) => {
+    try {
+        const manipResult = await compressImage(asset.uri);
+        const response = await fetch(manipResult.uri);
+        const blob = await response.blob();
+        const filename = asset.filename ?
+            `compressed_${asset.filename}` :
+            `image_${Date.now()}_compressed.jpg`;
+        const compressedFile = new File([blob], filename, { type: 'image/jpeg' });
 
+        const { upload_url, file_id } = await getUploadUrl(compressedFile, {
+            originalUri: asset.uri,
+            creationTime: asset.creationTime,
+            mediaType: 'image',
+            isCompressed: true
+        });
+
+        await uploadFile(compressedFile, upload_url);
+        await confirmUpload(file_id);
+
+        console.log('视频首帧文件上传成功:', {
+            fileId: file_id,
+            filename: compressedFile.name,
+            type: compressedFile.type
+        });
+        return { success: true, file_id };
+    } catch (error) {
+        return { success: false, error };
+    }
+};
 // 处理单个媒体文件上传
 const processMediaUpload = async (asset: ExtendedAsset) => {
     try {
@@ -432,11 +462,13 @@ const processMediaUpload = async (asset: ExtendedAsset) => {
         let compressedResult = { success: true, file_id: null };
         if (!isVideo) {
             compressedResult = await uploadCompressedFile();
+            // 添加素材
+            addMaterial(originalResult.file_id, compressedResult?.file_id || '');
+        } else {
+            // 上传压缩首帧
+            uploadVideoThumbnail(asset)
         }
 
-        // 添加素材
-        addMaterial(originalResult.file_id, compressedResult?.file_id || '');
-
         return {
             originalSuccess: originalResult.success,
             compressedSuccess: compressedResult.success,